A tall Umbaran cyborg male who stands at six and a half feet with a perfectly smooth complexion, like most of his species Nihlus' frame is lithe. His skin is a bright pale color where it is free of scars. Vexrii's face and body are both devoid of any hair. He has sunken eye-sockets and brows cracked with heavy usage of Sith Alchemy, eyes a set of obsidian pupils conquered by crimson-red irises.
The lower half of his jaw has been separated by lightsaber, necessitating an uncomfortable cybernetic apparatus to breath and speak. Extensive cybernetics have also been integrated into Nihlus' body, with the entire upper left portion of his chest and left arm cybernetic as well.
Nihlus has worked tirelessly to attain the knowledge of Ancient Sith architects, engineers, and builders of all types to learn the best design and build practices that the dark culture has to offer. He has emerged through this struggle with knowledge that drives the Umbaran constantly to modify and upgrade existing items - while pushing for the development of new-age Sith technologies.
Vexrii's pursuit of becoming a master Sith Engineer within the Brotherhood has further soured and eroded his relationships with those around him, forcing him to conduct much of his work in the shadows and out of the spotlight.
Nihlus' experiences on both sides of the Force have taught him that it matters not if you are a follower of the light or the dark. To him, the unending cosmic force that holds everything together craves equal balance on both sides, extinguishing whatever life necessary to obtain it when that balance is upset.
Vexrii at heart despises the Force because of the wretched waste of life and to that end sees it only as a tool to be manipulated - eventually destroyed, utilizing both Jedi and Sith techniques to further his ideology that the Force must come to an end. Due to this he cannot align himself fully with either the light or dark sides of the Force, forced to follow a path in-between.
During his time at the Holocron Center and Shadow Academy, Nihlus was exposed to a myriad of Sith knowledge. This led him to form a deep obsession with the teachings of Ancient Sith Magic, Sith Alchemy and Mechu-Deru as a skill to be mastered and learned, although he does not adhere to the Sith ways.
Vexrii's obsession runs particularly deep with imbuing these Ancient Sith powers into technology, and can often be found conducting research or tinkering with technical processes most would find unnatural and unnerving - leading to people to steer clear of this alchemist altogether.
Nihlus has several distinct personality traits that form his being, first and foremost being a rather cynical and stoic individual, particularly in the company of or when dealing with Force-sensitives. This Umbaran is equally stubborn as he is stoic and occasionally sarcastic, going so far as to disobey minor orders to prove a point or his abilities in a given situation. These traits have him seen as subordinate and brash with superiors and friends alike - however he never apologizes for who he truly is.
Nihlus Vexrii is unconcerned with collateral damage, rules of engagement, or the politics of the battle. He is coldly detached from those around him - even during times of high stress or combat. He shows little to no external emotion, instead allowing them to boil beneath the skin and fuel his powers.
Vexrii makes use of the Force in creative ways, mixing his abilities with Telekinesis and Mechu-Deru to bend technology to his will or outright destroy it. With no qualms about ending the life of a lesser being who has crossed him, very few enemies are spared Nihus' blade and even fewer allies feel comfortable fighting under him for fear of becoming expendable to this cyborg.
Nihlus utilizes his mastery knowledge of the Jar-Kai lightsaber form in unorthodox ways, utilizing his ambidextrous hands to take full advantage of each lightsaber blade as his primary form of combat. This Umbaran seeks to dominate and overwhelm his opponent through striking from odd angles and deceptive stances, ignoring standardized lightsaber combat sequences.
With the incorporation of the Vapaad lightsaber form's core principles into his primary fighting style, Vexrii's movements have become not only more aggressive but unpredictable as well - utilizing speed over might. This unpredictability prevents Nihlus Vexrii from knowing where his body may take him, seriously diminishing his ability to form a defensive strategy against a Jedi opponent.